Ferrocarriles Unidos del Sureste was a company that operated a railroad in southeastern Mexico

Mexico

The United Mexican States , commonly known as Mexico , is a federal constitutional republic in North America. It is bordered on the north by the United States; on the south and west by the Pacific Ocean; on the southeast by Guatemala, Belize, and the Caribbean Sea; and on the east by the Gulf of...

. In the 1930s the Mexican government decided to build a railroad into the Yucatán

Yucatán

Yucatán officially Estado Libre y Soberano de Yucatán is one of the 31 states which, with the Federal District, comprise the 32 Federal Entities of Mexico. It is divided in 106 municipalities and its capital city is Mérida....

, connecting the national system with the isolated Ferrocarriles Unidos de Yucatán

Ferrocarriles Unidos de Yucatan

Ferrocarriles Unidos de Yucatán was a narrow gauge railroad that operated in the state of Yucatán in Mexico. Four steam locomotives were bought and rebuilt by The Walt Disney Company and are currently operating at the Walt Disney World Railroad.- Facts :...

. The project was completed in 1950 and commemorated with a 5 peso coin. In 1975 the Yucatan and Southeast systems were merged into the Ferrocarriles Unidos del Sureste. The system was privatized in 1999, becoming part of Ferrocarriles Chiapas-Mayab

Ferrocarriles Chiapas-Mayab

Ferrocarriles Chiapas-Mayab was a railroad in southeastern Mexico. It was a subsidiary of the Genesee and Wyoming company of railways....

 (FCCM). FCCM was closed in 2007. Portions of the former Unidos del Sureste line, in and around Coatzacoalcos

Coatzacoalcos

Coatzacoalcos is a major port city in the southern part of the Mexican state of Veracruz, on the Coatzacoalcos River. Coatzacoalcos comes from an indigenous word meaning "Site of the Snake" or "Where the snake hides"...

, are now operated by Ferrosur.